 | ssmt-mpers:AmortisationOfDeferredIncome | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:BadDebtsRecovered | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:OtherIncomeDividend | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:GainsOnForeignExchange | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:GainsOnDisposalOfSubsidiaryJointVenturesAndAssociates | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:GainsOnDisposalOfOtherInvestments | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:GainsOnDisposalsOfPropertyPlantAndEquipment | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:GainsOnDisposalsOfNoncurrentAssets | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:OtherGainsRecognisedInProfitOrLossFairValueMeasurementAssets | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:OtherInterestIncome | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:IncomeFromManagementFees | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:OtherRentalIncome | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:OtherRentalIncomeOnLandAndBuildings | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ifrs-smes:ReversalOfImpairmentLossRecognisedInProfitOrLoss | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:OtherRoyaltyIncome | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:GrantsOrIncentivesReceivedByMalaysianGovernmentOrAgencies | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:GrantsOrIncentivesReceivedByForeignGovernmentOrAgencies | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:ContributionsReceivedByLocalContributor | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:ContributionsReceivedByForeignContributor | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:ContributionsReceivedByUnknownContributor | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:OtherMiscellaneousIncome | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:MiscellaneousOtherFeesAndCommissionIncome | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ifrs-smes:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLoss | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |
 | ssmt-mpers:FairValueGainOnRecycleOfForexReserveUponDisposalOfSubsdiaries | summation-item | http://xbrl.ssm.com.my/role/ssm/rol_ssmt-fs-mpers_2017-12-31/ssmt-fs-mpers_2017-12-31_role-300200 |